surveillance(speakout,upper-intermediate,unit 2)

The police officer refused to _ himself.

The new findings suggest that women ought to _ their cholesterol levels.

Drink-driving is one case where severe punishment seems to work as a _.

I don't have enough space in my computer to _ the information.

Criminals can _ about any person due to the Internet.

Nowadays people prefer to use _ technology to protect their houses.

The _ promised to investigate the source of the flooding.

I think that having CCTV on our streets is a complete _.